Perfect for drying more beef jerky with our famous jerky seasonings! These white trays are for use with models FD-30, FD-40, FD-50 and FD-60 only. Please check your model number before ordering. Expand your dehydrator as your needs grow with accessory trays. There is a limit to how many trays your dehydrator can be expanded to, please see your dehydrator for instructions. Patented Converga-Flow® requires no tray rotation. Drying pressure adjusts automatically to the number of trays.